IS0 529 - Spiral Point/Gun Nose

Thread Forms are Class 2 medium fit tolerance.

Spiral Point Tap UNC (Unified Coarse) Ground Thread HSS

A spiral point tap has a chiselled point that pushes the metal chips ahead of the forming threads. This is useful when tapping through-holes (holes that extend through the work piece).

Spiral Point taps are not recommended for use in blind holes: the accumulation of chips can bind and break the tap.

Sherwood Tap dimensions conform to ISO529 apart from NPT Forms which conform to ANSI 94.9. Straight Flute and Fluteless Taps are manufactured with a standard Bright Finish whereas the Machine Taps have an Oxidised Finish for best results dissipating the heat build-up associated with these applications.

Thread Forms are Class 2 medium fit tolerance.

For all technical and dimensional specifications please refer to our catalogue.

Fluteless Tap UNC (Unified Coarse) HSS

IS0 529 - Straight Flute Individual Sizes

Taper Tap UNC (Unified Fine) Straight Flute Ground Thread HSS

Sherwood taper taps are used to start cutting the thread is tapered back from the end 6 to 10 threads before a fully threaded diameter is reached this allows the tap to be positioned easily and correctly before it starts to cut the thread.

Sherwood Tap dimensions conform to ISO529 apart from NPT Forms which conform to ANSI 94.9. Straight Flute and Fluteless Taps are manufactured with a standard Bright Finish whereas the Machine Taps have an Oxidised Finish for best results dissipating the heat build-up associated with these applications.

Thread Forms are Class 2 medium fit tolerance.

For all technical and dimensional specifications please refer to our catalogue.

Spiral Flute Tap UNC (Unified Coarse) Ground Flute HSS

Spiral flute taps are used for machine tapping of blind holes as the have a spiral flute that channels the swarf back behind the tap and out of the hole along the flute.

BS 1127

For use in diestocks to produce external screw threads.

Die BSW (British Standard Whitworth) Ground Thread HSS

Manufactured to: BS1127

Thread form to: BS84

BS 1127

For use with spanners to clean and repair existing external screw threads.

Die Nuts Metric Coarse Ground Thread HSS